Device for preventing rails from longitudinal slipping.



I F. MARTENS.

DEVICE FOR PREVENTING RAILS FROM LONGITUDINAL SLIPPING.

APPLIUATIOH FILED APR.13, 1908. I

91 753345., Patented Apr. 6, 1909 PATENT mime i' FRANZ MARTENS. or BERLIN-011ARLoTTENBuao; GERMANY.

DEVICE FOR PREVENTING RAXLS FROM LONGETUDINAIA BLIPPHIG.

'autmnatically clamping the rails fast against tudinal movement.

in order to render the present invention more easily intelligible reference is had to rheaccompanying drawing, in which Figiu'e l is a front elevation of the clamping device, Fig. 2 a side elevation of the same. Fig. 3 is a front elevation and Figs. i and 5 are side elevations of a modification of the device. Pigs. (iand 7 are frontand side elevations of the device showing in what manner they are put in position. Fig. 8 is 'a detail view.

With reference to Figs. 1 and 2, l is a rail and 2 a sleeper. re is a clamp-like how and!) a wedge-like piece provided with a the sleeper as soon as they commence longi- I sle ve I) through which the shaft-like part o l how 1/. passes so that thus 7) is capable of being turned. around a. Now, if the rail couuncnces to slip longitudinally, the wedgelikepieee 'I will strike againstwthe sleeper 2 and the how (L roiiperating with I) like a. hilin'e will consequentlyhe forced downward and press the rail 1 against its sleeper and so clamp it fast.

According to Figs 23, 4 and 5 the Wedgelilte piece is'replaccd by a metal piece, having' the shape, as may be seen from the drawin The middle part 7) of this metal piece Specification of Letters Patent.

Application filed April 13, 1908. Eerie! No. 426,823.

Patented. .ii rn a, race.

l is made so as to embrace and thus form a pivot for the how (1., while the side parts ex tend downward and strike against the sleeper as soon as the rail commences longitudinal slipping. The action is the same as as the downwardly extending part of 6 comes in touch with the sleeper, the up er part of 7) will act like an eccentric so t at thebow a, cooperating with 6 like a hinge, will be depressed and thus grip the rail tightly.

Figs. (3 and 7 are illustrations to show in "what manner the how a and the piece b are l brought upon-the rail, while Fig. 8 shows a detail view of the how a and the piece b.

It is evident, that with the present invention the object in view is attained as perlectly as possible seeing that the arrangement of parts is met in such a manner that the clamping of the rail must take place either hy Wedge-like or eccentric-like action quite automatically.

It is self-evident that the whole. device may consist of one piece so that the resting surfaces of the how are turned upon the rail foot.

I claim as my invention:-- in a device for preventing rails from FRANZ MARTENs. 11.. s.)

Witnesses p i Orro Komo,

l- WM. WASHINGTON BRUNSWICK.

described as regards Figs. 1 and 2.. As soon ,70 longitudinal slipping the combination of a wedge-like piece 6 with sleeve i5, 

